Seafarers and National Insurance: enquiries
Call or write to HMRC with National Insurance enquiries if you are working on a ship or offshore in the oil and gas industry.
Email HMRC about National Insurance if you’re a seafarer: groupmailbox.marinenics@hmrc.gov.uk
You can email HMRC:
- if you have a question about National Insurance and working offshore
- to send information for a Mariner’s National Insurance questionnaire you have already completed
Phone
Check your National Insurance liability if you’re resident in the UK
Phone HMRC if you’re a mariner or seafarer to:
- check if you’re liable to pay National Insurance
- check you’re paying the correct amount of National Insurance
- get advice on making voluntary National Insurance contributions
- check the status of your employer
- claim a refund of National Insurance
Telephone: 0300 322 9464
Outside UK: +44300 322 9464
Opening times: Monday to Friday: 8am to 4pm. Closed bank holidays.
Check your National Insurance liability if you’re not a UK resident
Call HMRC to check your National Insurance liability if you’re a resident of another country, your employer makes National Insurance contributions on your behalf and you work:
- for, or are paid by, a company based in the UK
- on a ship registered in the UK or Isle of Man
- in UK inshore waters
- on a ship engaged in exploration or exploitation of oil or gas in the designated UK sector of the Continental Shelf
Telephone: 0300 200 3500
Textphone: 0300 200 3519
Outside UK: +44 191 203 7010
Opening times: Monday to Friday: 8am to 4pm. Closed bank holidays.
Post
Write to HMRC if you have a question about National Insurance and work:
- on a ship
- offshore in the oil and gas industry in the designated UK sector of the Continental Shelf
You do not need to include a street name, city name or PO box when writing to this address.
Couriers should use a different address.
NIC & EO
HM Revenue and Customs
BX9 1AN
United Kingdom
Related content
Tax and National Insurance for oil and gas workers
Seafarers Earnings Deduction: tax relief if you work on a ship